Roshield RDG1x2 Rat Drain Guard, 4"/110mm, 2-pack

Roshield RDG1x2 is listed as a 2X rat drain guard in a 4"/110mm size, made from 316 stainless steel. Its one-way flap is intended to let wastewater pass downstream while blocking rats moving upstream. Confirm the pipe dimensions and whether the listing supplies two guards before ordering.

At a glance

One-way flap design is intended to pass liquids and solid waste downstream while obstructing rats moving upstream.
The listing says the bolt can be switched to match the direction of flow.
The stated 4"/110mm size is also described as suitable for 100mm Victorian drains.
Instructions are claimed to be included, with support video and technical help available on request.

Price

£63.74Save 15%

Reference price: ~~£74.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

316 stainless steel is specified for use in damp drainage conditions.
The reversible bolt arrangement allows the flap direction to be matched to flow.
Assembly is listed as not required.

Technical specifications

9 specifications

Fit and construction
Listed size	4" / 110mm
Material	316 stainless steel (marine-grade)
Dimensions and weight	11 x 10 x 9 cm; 570 g
Model	RDG1x2
Made in	UK

Installation and operation
Assembly required	No
Installation location	within the inspection chamber
Waste flow	allows liquids and solid waste to pass down the system
Installation direction	either at the entrance or exit of the pipe

What to know before buying

The title says 2X, but the supplied description calls this a 4"/110mm version without confirming the number of guards. The listing also variously describes installation as needing no tools and says an included bolt can be switched. Confirm the selected listing's quantity, tool requirements and fit for the particular pipe before purchase. Claims of permanent, maintenance-free protection are manufacturer claims, not a guarantee of results.

Who is it for?

A good fit for

People seeking a one-way rat barrier to fit inside a drainage inspection chamber.
Buyers whose drain matches the stated 4"/110mm size, including a compatible 100mm Victorian drain.

Less suited to

Buyers who need confirmed compatibility with an unmeasured or different pipe size.
Buyers who need the supplied unit count confirmed before ordering.

Roshield RDG1x2 Rat Drain Guard, 4"/110mm, 2-pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 359 ratings

5 stars64%64%
4 stars17%17%
3 stars12%12%
2 stars2%2%
1 star5%5%

Customer feedback highlights perceived effectiveness against rats, sturdy construction, fit and straightforward installation. However, cleaning feedback is mixed: one account reports no toilet-paper blockage while another describes waste getting stuck at the back. For a guard installed in a drain, the reported flow concerns matter alongside the claimed passage for liquids and solid waste. Opinions on value also differ, so consider the fit and installation context rather than assuming a trouble-free result.

Positive themes

Customers report effective rat prevention, secure fit and sturdy construction.
Installation is described as easy, including one account of fitting it in under five minutes.

Negative themes

Some customers consider it expensive.
One customer reports waste getting stuck at the back.

Mixed feedback

Cleaning experiences differ, with one customer reporting no toilet-paper blockage and another reporting waste snagging.

Frequently asked questions

What drain size is this guard listed for?

The listing specifies 4" / 110mm and says it can be installed into 100mm Victorian drains. Check your pipe dimensions and fitting requirements before buying.

How does the flap work?

The listing describes a one-way flap that allows liquids and solid waste to flow downstream while preventing rats from moving upstream.

Does the package contain two guards?

The title says 2X, but the supplied product description does not confirm the number of guards. Check the selected listing's package quantity.

Does installation require tools?

The listing says installation needs no previous experience and an A+ description claims tool-free fitting, but it also mentions an included bolt that can be switched. Confirm the instructions and tool requirements for the selected item.